BE424160A

BE424160A -

Info

Publication number: BE424160A
Authority: BE
Priority date: 1936-11-05
Filing date: 1937-10-19
Publication date: 1937-11-30
Also published as: BE420156A; BE418255A; FR49249E; FR818547A; CH202889A

Description

       

  Ouvrage défensif.

  
Le brevet principal décrit un ouvrage défensif applicable à des buts militaires et autres, formé d'éléments tels que des madriers en béton disposés en assises horizontales superposées et reliées entre elles par des colonnes verticales, cet ouvrage constituant sur toute sa longueur

  
une poutre rigide et indéformable, triangulée horizontalement.

  
Les présents perfectionnements concernent la construction d'un tel ouvrage en vue de le rendre particulièrement propre à constituer un obstacle au passage de chars d'assaut. Suivant ces perfectionnements, une poutre triangulée conforme au brevet principal, limitée en hauteur à quelques assises, forme une semelle ou fondation dans laquelle sont plantées des rangées de pieux constitués par le prolongement des colonnes verticales encastrées aux noeuds de

  
la poutre.

  
Une construction ainsi établie présente d'importants avantages par rapport aux champs de rails préconisés comme obstacles anti-chars. En effet, les colonnes encastrées dans la poutre de béton, opposent la masse totale de celle-ci, répartie sur une longueur qui peut être énorme, à la force vive du char, alors que dans un champ de rails, chaque rail doit résister séparément. La poutre triangulée formant semelle ou fondation peut être enfoncée plus ou moins dans le sol, mais il suffit de l'enfoncer à faible profondeur (par exemple 0.50 m. ou moins) pour obtenir un ancrage à toute épreuve des colonnes, grâce à la solidarité de l'ensemble.

  
Un tel obstacle peut donc être employé sur tous les terrains, notamment sur les terrains rocheux où les champs de rails sont difficiles à implanter et sur les terrains en pente où les obstacles mobiles ne conviennent pas.

  
Les colonnes peuvent être constituées de poutrelles en acier doux. Suivant un mode d'exécution avantageux elles sont formées de cornières en acier doux qui sont soudées bord à bord et emboîtent des noyaux de béton. Ces colonnes sont établies de manière à plier sans se rompre, en maintenant l'obstacle à l'avancement du char.

  
Sur le dessin annexé qui représente, à titre d'exemple, un obstacle anti-char conforme à l'invention:
Fig. 1 est une vue fragmentaire, en élévation de face, Fig. 2 est une vue en plan correspondante. Fig.3 est une coupe transversale suivant la ligne



  Defensive work.

  
The main patent describes a defensive work applicable to military and other purposes, formed of elements such as concrete planks arranged in horizontal layers superimposed and connected to each other by vertical columns, this work constituting over its entire length

  
a rigid and undeformable beam, triangulated horizontally.

  
The present improvements relate to the construction of such a structure with a view to making it particularly suitable for constituting an obstacle to the passage of tanks. According to these improvements, a triangulated beam conforming to the main patent, limited in height to a few courses, forms a sole or foundation in which rows of piles are planted formed by the extension of the vertical columns embedded at the nodes of

  
beam.

  
A construction thus established has significant advantages over the rail fields recommended as anti-tank obstacles. Indeed, the columns embedded in the concrete beam, oppose the total mass of this one, distributed over a length which can be enormous, to the living force of the tank, whereas in a field of rails, each rail must resist separately . The triangulated beam forming a sole or foundation can be driven more or less into the ground, but it is enough to drive it shallowly (for example 0.50 m. Or less) to obtain a foolproof anchoring of the columns, thanks to the solidarity from the whole.

  
Such an obstacle can therefore be used on all terrains, in particular on rocky terrain where rail fields are difficult to set up and on sloping terrain where mobile obstacles are not suitable.

  
Columns can be made of mild steel joists. According to an advantageous embodiment, they are formed of mild steel angles which are welded edge to edge and fit into the concrete cores. These columns are established so as to bend without breaking, maintaining the obstacle to the advancement of the chariot.

  
In the appended drawing which shows, by way of example, an anti-tank obstacle in accordance with the invention:
Fig. 1 is a fragmentary view, in front elevation, FIG. 2 is a corresponding plan view. Fig. 3 is a cross section along the line

Claims

Fig. 4 shows on a larger scale the cross section of a column.

The work shown has a horizontally triangulated sole formed of a double line of planks

5, 5 'extending over the entire length of the structure and transverse planks 6 and 7. At the nodes of the structure are embedded, in poured concrete 8, vertical columns each formed of two angles 9, 9' mild steel welded in 10 along their contiguous edges. In these columns are poured concrete cores 11.

Preferably the angle bar 9 located in front, on the side from which the attack is expected, is higher than the angle iron 9 'located behind it, in order to create at the level of the latter a place where the angle iron can bend if it is requested by too strong a thrust. The columns thus folded continue to effectively oppose the passage of tanks.

As indicated in the drawing, the columns are advantageously arranged so as to present towards the front of the obstacle an edge and faces forming an angle of

45 [deg.] With the general direction of the obstacle in order to deflect the projectiles hitting it normally.

The arrangement, the shape and the number of the planks and the columns can naturally be modified without departing from the scope of the invention.

1.- Defensive structure forming an anti-tank obstacle comprising a sole made up of a horizontally reticulated beam, according to the main patent, the columns of which are extended vertically so as to form rows of stakes closed embedded in the nodes of the reticulated sole.

2.- Defensive structure according to claim} !, whose columns consist of mild steel beams capable of bending while opposing 1 ': advancement

of the tank.

3.- Defensive structure according to claim 2, the columns of which consist of two angles welded together by the edges and fitting a concrete core, the angle placed in front being preferably longer than the other.

4.- Defensive structure according to claim 3, the columns of which present towards the front the edge of a cor- <EMI ID = 2.1>

rale of the obstacle.

5. - Defensive structure forming an anti-tank obstacle, in substance as described above and shown in the attached drawing.